Mounting for line spacing levers



'Nov. 10, 1931. J. PHELPS MOUNTING FOR LINE SPACING LEVERS Filed July 27, 1927 V lN/ENTOR Y M ATTORNEY WlTNESSES m Patented Nov. 1 0, 19 31 PATENTTOFFICE J'bSEPfi PHELPS,OF NORTH CALDWELL, NEW JERSEY, ASSIGN OR TO REMINGTON TYPE- WRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK MOUNTING non LINE SPAGING LEVER-S ,Myinvention relates to typewriting or like machines, and more particularly to means for mounting the line spacing lever thereof. p Usually the line spacing lever of a typeriting machineis employed to efiect a line s acing operation and by a continuation of the same movement of the lever returns the carriage to begin a new line ofwriting. At times considerable force is exerted on the lever and it is desirable to provide a sturdy pivotal mounting therefor to withstand the excessive strain exerted on the lever and its bearing and yet provide an easily operable lever with means that resist wear at the bearjig-ings and may be adjusted tocompensate for the features of construction, arrangements of parts, and combinations of devices set forth in the following description and particularly pointed out in the appended claims. In the accompanying drawings wherein 5 like reference characters represent corresponding parts in the different views .Fig. 1 is an enlarged, detail, left-hand side view, with parts in section of a line spacing lever and the means for mounting the same constructed in accordance with my invention.

.Fig.'2 is a horizontal sectional view of the same,taken on the line 22 of Fig. 1 and looking in the direction of the arrows at said line.

F ig. 3 is a view that shows in detail and in perspective various parts that enter into the construction of the present invention; such parts being shown detached.

The line spacing lever and its mounting of the present invention may be employed in conjunction with various forms of line spacing devices, such for example as line spacing devices similar to those disclosed in the patent to Barr N 0. 1,418,901 dated June 6th, 1922,

by converting the lever 23 of the patented con- 5' l Application filed J'uly27,

- under control of the line spacing lever 2. The

1927. Serial No. 208,776.

struction into a lever of the first order and ex tending the upper arm thereof into the path of the line spacing lever of the present invention. However, I; have omitted any showing of the line spacing mechanism of said Barr patent, such mechanism beingunnecessary to arrive at" an understanding of the present invention. a

I The frame of the carriage which may be of any suitable construction is shown inpart, and is designated by the reference numeral 1. It will be understood that such carriage may carry a cylindrical platen which is line spaced by suitable line spacing mechanism o5 carriage is mounted. to travel from side-tosideof-the machine and is returned from left to right, .or in the direction of the arrow, as the parts are viewed in Fig. 2, preferably by a continued motion of the lever 2 in such general direction after the line spacing movement of the platen has been completed. The line spacing lever by which the line spacing movement of the platen and the return of the carriage are thus effected is mounted on the carriage as follows 1 1 The lever 2 is provided at its forward end with a finger piece 3 by which it is actuated. Said lever at its rear end is mounted on a vertically disposed pivotal axis to turn a limited distance from left to right on the carriage. This movement of the forwardly extending lever arm causes a second arm 4 of saidlever to receive a rearward angular movement by which motion is given to the line spacing devices controlled thereby.

The pivotalmounting for the line spacing lever comprises a hub-like rear end 5, preferably cast integral with the arms thereof and having oppositely disposed widely separated 90 bearing recesses 6 and 7 therein, one at the top and the other at the bottom of the hub 5,

with a centrally disposed vertical opening 8 extending through the hub. A pivot pin 9 has a cylindrical stem flattened at one sideof its lower end portion, as indicated at 10. The diameter of the cylindrical portion of the pivot pin 9 is preferably smaller than that of the opening 8 so that the walls of the opening 8 will not bear on the pin. The pin 9 at its 100 upper end has a head with a conoidal bearin face 11 at its under side adapted to be receive in the bearing recess 6, the bearing walls of which are shaped to conform to the conoidal bearing portion of said head.

A ring-like or annular bearing member 12 has oppositely disposed conoidal bearing faces 13 and 14, one at the top and the other at the bottom thereof. This bearing member 12 has a vertically disposed central opening 15 of greater diameter than that of the 'cylindrical portion of the pivot pin 9 which extends therethrough, so as to be free from contact therewith. The upper conoidal bearing face 13 of the member 12 is adapted to be received in the correspondingly shaped bearing recess 7 in the lower end of the hub of the lever. The lower conoidal bearing face 14 of said member 12 is adapted to be seated in a correspondingly shaped bearing recess 16 in a supporting or bearing portion 17 of the carriage. An opening 18 in said bearing portion 17 is aligned with the openings 15 and 8 and receives the lower end portion of the pivot pin 9 therein. The pin 9 is firmly seated, but is capable of receiving a vertical or axial adjustment, in the opening 18 of the support 17. A transversely extending tapped opening in the supporting portion 17 of the carriage receives a set screw adapted to bear at its inner end against the flat face 10 of the pivot pin and firmly hold such pin in position on the carriage, and in the position of vertical adjustment itmay receive.

By making the diameter of the opening 15 in the ring-like or annular member 12 of greater diameter than the cylindrical portion of the pin 9 that extends therethrough, said bearing member 12 may accurately center itself in the bearing recess l6'without interference from the pin 9.

From the foregoing description it will be seen that the line spacing lever is supported for pivotal movement on two oppositely disposed comparatively widely separated conoidal bearings 11 and 12 mounted for relative adjustment one towards the other to take up and compensate for any wear that may take place at the bearings of said lever and yet provide a sturdy firmly supported and eflicient mounting for the lever which will effectively guide it in its movement and hold it properly centered without material resistance to its operating movement.

I prefer in practice to harden the pivot pin 9, or the bearing head thereof, and the ringlike bearing member 12, so as to resist wear on these parts and provide a smoothbearing for the lever. Such wear as does occur on these or the companion bearing parts may be readily taken up by loosening the screw 20, forcing the pin 9 down to efiect a firm seating of the bearings and again tightening the screw. This keeps the lever firmly and. properly centered at its bearing, and assures at all times an easy operation of the lever around the proper center and in its true path of movement and a proper operation of the parts controlled thereby, so far as a sturdy, firmly supported, properly centered bearing for the lever may contribute to such last mentioned result.

The construction is such that it is inexpensive to manufacture, the parts may be easily assembled and adjusted, and the character of the members 9 and 12 is such that they may be conveniently hardened.

Any suitable means may be employed for limiting the pivotal movement of the lever on the carriage and for returning the lever to normal position when it is released by the operator after each line spacing operation.

Various changes may be made in theconstruction, and parts thereof may be employed without others, without departing from my invention as it is defined in the accompanying claims.

What I claim as new and desire to secure by Letters Patent, is

1. The combination of a line spacing lever for typewriting or like machines, and means for pivotally mounting the same comprising a headed pivot pin having a conoidal bearing face received in a corresponding bearing recess in said lever, a support having an opening in which said pin is received with a snug fit and capable of axial adjustment only therein, a set screw threaded into atapped opening in said support andcoacting with said pivot pin to hold it in its position of axial adjustment, and a ring-like bearing member loosely surrounding said pin and disconnected therefrom and having oppositely disposed conoidal bearing faces one received in a corresponding bearingrecess in said support and the other receive in a corresponding bearing recess in said lever.

2. The combination of a line spacing lever for typewriting and like machines, and means for pivotally mounting the same on the carriage to turn in the general direction of the travel of the carriage so that the line spacing operation and return of the carriage may be effected by a single continuous movement of the lever in the same general direction, said means comprising a vertically disposed headed pivot pin having a conoidal bearing face received in a corresponding bearing recess in said lever, a support on the carriage having an opening in which said pin is received with a snugfit and capable of vertical adjustment only therein, a set screw in the carriage for holding said pivot pin against movement from its position of vertical adjustment, and

a ring like bearing member disconnected from and loosely surrounding said pin and supported on the carriage, said ring-like member having an upper'conoidal bearing face received in a corresponding bearing recess in JOSEPH PHELPS. 

